Disbelieving a church ruling on a matter of fact is not heresy, though it may be presumptuous, because on facts that authority is not infallible

And from hence it follows, that while it is heresy to resist the decisions of the faith, because this amounts to an opposing of our own spirit to the Spirit of God, it is no heresy, though it may be an act of presumption, to disbelieve certain particular facts, because this is no more than opposing reason—it may be enlightened reason—to an authority which is great indeed, but in this matter not infallible.